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Chemistry Forums for Students => High School Chemistry Forum => Topic started by: Bel-p on May 01, 2006, 02:59:21 PM

Title: Nickel (II) chloride(aq) + sodium hydroxide (aq) --> ?
Post by: Bel-p on May 01, 2006, 02:59:21 PM
Nickel (II) chloride(aq) + sodium hydroxide (aq) --> ?
Is this right:

Molecular equation: NiCl2(aq) + 2NaOH(aq) --> Ni(OH)2(s) + 2NaCl(aq)
Ionic equation:       Ni 2+  &  2Cl-   &  2Na+ & 2OH-  --> Ni(OH)2(s) & 2Na+ 2Cl-

Title: Re: Nickel (II) chloride(aq) + sodium hydroxide (aq) --> ?
Post by: Equi on May 01, 2006, 05:37:14 PM
Sounds good.
Title: Re: Nickel (II) chloride(aq) + sodium hydroxide (aq) --> ?
Post by: constant thinker on May 01, 2006, 08:45:32 PM
I'll second that.
Title: Re: Nickel (II) chloride(aq) + sodium hydroxide (aq) --> ?
Post by: mike on May 01, 2006, 09:30:15 PM
Equation:

NiCl2(aq) + 2NaOH(aq) ---> Ni(OH)2(s) + 2NaCl(aq)

Ionic:

Ni2+(aq) + 2Cl-(aq) + 2Na+(aq) + 2OH-(aq) ---> Ni(OH)2(s) + 2Na+(aq) + 2Cl-(aq)

Net ionic:

Ni2+(aq) + 2OH-(aq) ---> Ni(OH)2(s)
Title: Re: Nickel (II) chloride(aq) + sodium hydroxide (aq) --> ?
Post by: Borek on May 02, 2006, 03:44:59 AM
Ni2+(aq) + 2OH-(aq) ---> Ni(OH)2(s)

Should be

Ni2+(aq) + 2OH-(aq) ---> Ni(OH)2(s)

(note (aq) and (s) are not subscripts!).
Title: Re: Nickel (II) chloride(aq) + sodium hydroxide (aq) --> ?
Post by: mike on May 02, 2006, 06:10:11 AM
Quote
(note (aq) and (s) are not subscripts!).

Can you please provide a reference for this :)
Title: Re: Nickel (II) chloride(aq) + sodium hydroxide (aq) --> ?
Post by: Borek on May 02, 2006, 07:23:59 AM
IUPAC Green Book (http://www.iupac.org/reports/provisional/abstract05/GreenBook051206_prs.pdf), General Chemistry section, Other symbols and conventions in chemistry (2.10.1), (vi) States of aggregation.
Title: Re: Nickel (II) chloride(aq) + sodium hydroxide (aq) --> ?
Post by: mike on May 02, 2006, 08:32:54 PM
Quote
General Chemistry section, Other symbols and conventions in chemistry (2.10.1), (vi) States of aggregation.

Fantastic! Thanks Borek :) :)